In Estonian internet / electronic voting system, authentication is done by Network server and also the access rights are checked by Network server. Communication between Voter application and Network server is secure using SSL connection. Network server checks with votes storing server that if the voter had voted or not. If yes then the network server forwards a message for acknowledgement, and a voter can try multiple times to register his/her vote. And here, we find the major flaw in the system, where a voter could be coerced and forced to do a second voting in favour of some candidate which coercer demands. Voter again casts vote using voter application and signs the encrypted ballot with private key. Voters’ personal data and ballot is stored in a LOG file. SERVE also does the same process but does not keep personal data of voter and ballot in LOG file. SERVE also does not use private key for signature for encrypted ballot but use private key for only decrypting the vote / ballot Votes Storing server. In Estonian internet / electronic voting system, network server communicates to votes storing server that whether the voter has already voted or not. If the period of voting is over, then only the latest casted vote will be counted for the final tally and not the other ones. Log 2 is maintained for saving multiple votes. Log 3 is created and maintained for storing and sending the list of voters with encrypted votes to Votes Counting Server. In SERVE, votes storing server does send an error message to the network server in case a voter votes more than once. List of voters and votes / ballots are stored in separate and these two files are then sent to votes counting server. 4.2 THREATS TO SERVE>